ZmRLCK1 modulates secondary cell wall deposition in maize
文献类型: 外文期刊
第一作者: Li, Haiyan
作者: Li, Haiyan;Li, Xin;Lu, Xiaoduo;Lu, Xiaoduo;Lu, Xiaoduo
作者机构:
关键词: drought-sensitivity like; maize; microtubule; receptor-like cytoplasmic kinase; secondary cell wall
期刊名称:PLANT JOURNAL ( 影响因子:5.7; 五年影响因子:7.0 )
ISSN: 0960-7412
年卷期: 2025 年 123 卷 1 期
页码:
收录情况: SCI
摘要: The secondary cell wall (SCW) is essential for providing mechanical strength to plants, enabling upright growth and facilitating the long-distance transport of water and nutrients through the vascular system. In this study, we generated an EMS-induced mutant library in B73 maize and identified two "drought-sensitive like" mutants, rlck1-1 and rlck1-2, which exhibited impaired function of ZmRLCK1. This gene encodes a predicted receptor-like cytoplasmic kinase with kinase activity. Phenotypic analysis revealed that ZmRLCK1 mutation disrupted metaxylem vessel development, likely compromising upward water transport. Additionally, the mutants displayed aberrant microtubule organization, suggesting a role for ZmRLCK1 in cytoskeletal regulation. Differential phosphoproteomic sequencing identified several microtubule-associated proteins as potential substrates of ZmRLCK1, though the exact molecular mechanisms linking ZmRLCK1-mediated phosphorylation to microtubule dynamics remain to be fully elucidated.
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